Explain why you know that λ is a root of charL(x) if and only if Ker(λId-L)≠0
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 18E
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Explain why you know that λ is a root of charL(x) if and only if Ker(λId-L)≠0
Expert Solution
Step 1
To prove the equivalent conditions on the roots of the characteristic polynomial and the kernel of the transformation .
Step 2
The proof is a direct consequence of the basic fact: The roots of the characteristic polynomial of L are the eigenvalues of the operator L. Also recall that ker(L)=kernel (L) is the subspace of all vectors v such that Lv=0
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